The New Encyclopaedia Britannica: Macropaedia: knowledge in depth. 19 vEncyclopaedia Britannica, Incorporated, 1981 - Encyclopedias and dictionaries |
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Page 126
... industry is in part shaped by custom rather than by logic . The petroleum industry is usually thought of as separate from the chemi- cal industry , for in the early days of the industry in the 19th century crude oil was merely subjected ...
... industry is in part shaped by custom rather than by logic . The petroleum industry is usually thought of as separate from the chemi- cal industry , for in the early days of the industry in the 19th century crude oil was merely subjected ...
Page 127
... industry . Divisions of the chemical industry The beginning of the chemical industry might be taken either as the historical beginning , or as the raw materials that are fed into it and undergo transformation . But to begin with each of ...
... industry . Divisions of the chemical industry The beginning of the chemical industry might be taken either as the historical beginning , or as the raw materials that are fed into it and undergo transformation . But to begin with each of ...
Page 138
... industry on a smaller scale . World production in the early 1970s was not much more than 10,000 tons annually . The largest producer is Japan , where iodine is obtained from sea- weed . Seawater contains only about 0.05 parts per mil ...
... industry on a smaller scale . World production in the early 1970s was not much more than 10,000 tons annually . The largest producer is Japan , where iodine is obtained from sea- weed . Seawater contains only about 0.05 parts per mil ...
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acid activity administration ammonia army atomic orbitals became benzene bonds Buddhist called carbon atoms cells central centre Ceylon Ch'in Chaetognatha Charadriiformes Charles Chaucer chemical bond chemical reactions chemistry chemoreception Chess Chicago children's literature Chile China Chinese chloride Chou common complex compounds covalent covalent bonds cultural disease drugs dynasty early economic electrons elements emperor energy example fluorine groups hydrogen important increased industry insects involved ions isotopes king known land large number Lo-yang major mass materials ment metal methods molecular molecules nitrogen northern nuclei occur officials orbitals organic oxide oxygen party percent period political population provinces quartets reactants receptors region reign result river separation Shang shell Sinhalese social sodium sodium chloride solution southern species structure substances sulfonamide sulfur sulfuric acid Szechwan T'ang Taoist temperature tion Tsung turtles Yangtze